SynthesisInternational journal of chronic obstructive pulmonary disease2025
A Systematic Review of Codelists to Identify Chronic Bronchitis and Emphysema in Routine Electronic Healthcare Record Data and Derivation of a Standardized Codelist for Future Research.
Synthesis in International journal of chronic obstructive pulmonary disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
9 authors.
Funding
Abstract
Medical codes and codelists are essential to identify diseases, medicines, and related events when using electronic healthcare records (EHRs) for research. As multiple codes can be used to define the same medical condition, an inconsistency of applying codes by clinicians or researchers may complicate the identification of diseases. To minimize the inconsistency of codes and increase the comparability of research findings, we sought to integrate all medical codes and codelists generated from existing studies to produce a single list of codes for both chronic bronchitis and emphysema for future research. We systematically reviewed studies, which included codes used to define chronic bronchitis and/or emphysema regardless of code systems. We searched MEDLINE, Embase, Web of Science, Scopus, CINAHL, and Global Health from 1
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